我尝试使用apt-get upgrade升级我的debian软件包，但随后抛出以下错误
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 135 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Could not exec dpkg!
E: Sub-process /usr/bin/dpkg returned an error code (100)